CN202867558U - Sliding friction kinematic pair mechanism for retarding frictional wear - Google Patents
Sliding friction kinematic pair mechanism for retarding frictional wear Download PDFInfo
- Publication number
- CN202867558U CN202867558U CN 201220325543 CN201220325543U CN202867558U CN 202867558 U CN202867558 U CN 202867558U CN 201220325543 CN201220325543 CN 201220325543 CN 201220325543 U CN201220325543 U CN 201220325543U CN 202867558 U CN202867558 U CN 202867558U
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- Prior art keywords
- sliding friction
- pair
- kinematic pair
- friction
- microflute
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Abstract
The utility model relates to a sliding friction kinematic pair mechanism for retarding frictional wear. The sliding friction kinematic pair mechanism comprises a driving friction pair (1) and a driven friction pair (2), wherein the straight line (plane sliding friction kinematic pair) or spiral line (cylindrical surface sliding friction kinematic pair) microgrooves having parallel axes are formed on the friction contact face of the driven friction pair (2), the microgrooves form alpha angles (recommended to be 30-60 degrees) with the motion direction of the sliding friction kinematic pair, and the driving friction pair (1) is in clearance fit with the driven friction pair (2). According to the sliding friction kinematic pair mechanism provided by the utility model, the frictional wear can be effectively retarded, the use performance of the sliding friction kinematic pair can be improved, and the service life of the sliding friction kinematic pair can be prolonged; and the sliding friction kinematic pair mechanism has good reliability, better use value and stronger practicability.
Description
Technical field
The utility model relates to a kind of fretting wear that slows down, and improves usability and the sliding friction kinematic pair mechanism in working life.
Background technique
The sliding friction kinematic pair is a kind of important mechanical motion mechanism, it is widely used in the various mechanical systems, such as cylinder, hydraulic actuator etc., particularly carry out in realization and do on the element of straight line motion or straight reciprocating motion, the sliding friction kinematic pair is used widely and is played a part very important.
The sliding friction kinematic pair of prior art mainly is comprised of active friction pair and driven friction pair, such as oil hydraulic cylinder and piston.It slows down wearing and tearing, and improving performance and the main method in life-span is to improve degree of finish and the quality of fit of kinematic pair surface of contact, strengthens lubricating between the kinematic pair.But the degree of finish of kinematic pair surface of contact and the raising of quality of fit not only increase cost of production, also might be high and crowded broken or squeeze and take off the lubricant film between kinematic pair and then cause " doing " between the kinematic pair to rub because of degree of finish and quality of fit, make lubrication failure, wearing and tearing increase, and the motion catching phenomenon might occur; Lower degree of finish and quality of fit obviously can reduce the usefulness of kinematic pair.In addition, the wear debris that is mixed between the kinematic pair also is the key factor that reduces the usefulness of sliding friction kinematic pair, even the working life of having reduced the sliding friction kinematic pair, and practicability is not good enough.
The model utility content
The purpose of this utility model is for the larger and potential motion catching phenomenon of the fretting wear that solves sliding friction kinematic pair in the prior art, the problem that practicability is not good enough, the utility model provides a kind of friction and wear that slows down, Effective Raise working life, the sliding friction kinematic pair mechanism that practicability is good.
The technical solution of the utility model is a kind of sliding friction kinematic pair mechanism of slowing down fretting wear, described sliding friction kinematic pair mechanism comprises initiatively friction pair 1, driven friction pair 2, initiatively form Spielpassung between friction pair 1, the driven friction pair 2, it is characterized in that: microflute 3 is set on the frictional contact surface of driven friction pair 2.Microflute 3 is more than the twice, each road microflute 3 axially parallel to each other, and the spacing of microflute 3 is 5～10mm, is equi-spaced apart between the microflute 3.
The beneficial effects of the utility model be sliding friction kinematic pair mechanism in the course of the work, microflute on its driven friction pair surface of contact can accumulate a certain amount of oiling agent on the one hand, make the kinematic pair surface of contact in the progress of work, can carry oiling agent all the time, slow down friction; On the other hand can with because of fricative scrap collecting in microflute, reduce wear; The 3rd, can play to a certain extent thermolysis with long-pending oil in the angled microflute of kinematic pair moving direction.Therefore, friction and wear can effectively slow down in the utility model sliding friction kinematic pair mechanism, improves usability and the working life of kinematic pair, and good reliability has better usability and stronger practicability.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is driven friction pair surface of contact partial enlarged drawing
Fig. 3 is that microflute B-B is to sectional view
Wherein, 1-is friction pair initiatively, 2 driven friction pairs, 3-microflute.
Embodiment
Consult Fig. 1, Fig. 2 and Fig. 3, it is the structural representation of the utility model sliding friction kinematic pair mechanism for implementing mode.In the present embodiment, described kinematic pair comprises initiatively friction pair 1, driven friction pair 2, wherein, have microflute 3 on the frictional contact surface of driven friction pair 2, initiatively form the Spielpassung that is equivalent to H8/f7, H9/h8 tolerance level between friction pair 1, the driven friction pair 2.
And described sliding friction kinematic pair is only done straight line motion, its frictional contact surface is plane or cylinder, the sectional shape of microflute 3 is the circular arc bottom equilateral triangle, and the axis of microflute 3 is parallel to each other, spacing d is straight line planar slide fricting movement pair or the helix cylinder sliding friction kinematic pair of 30～60mm, and becomes the α angle to recommend 30 °～60 ° with sliding friction pair moving direction.
Consult Fig. 1, Fig. 2 and Fig. 3, planar slide fricting movement pair comprises initiatively friction pair 1 and driven friction pair 2, and this fricting movement pair is only done straight line motion or straight reciprocating motion.On driven friction pair 2 surface of contact, with the moving direction of friction pair is at 45 ° the microflute 3 that the cross section is the circular arc bottom equilateral triangle is set, its all microflute axis spacings are 10mm, and form the Spielpassung that is equivalent to H8/f7, H9/h8 tolerance level between active friction pair 1 and the driven friction pair 2.
Consult Fig. 1, Fig. 2 and Fig. 3, cylinder sliding friction kinematic pair comprises initiatively friction pair 1 and driven friction pair 2, and this fricting movement pair is only done straight line motion or straight reciprocating motion.Become 30 ° the microflute 3 that the cross section is the circular arc bottom equilateral triangle is set with the moving direction of friction pair on driven friction pair 2 contact cylinders, its axis is that spacing is single head or the multi-head spiral line of 5mm; And initiatively form the Spielpassung that is equivalent to H8/f7, H9/h8 tolerance level between friction pair 1 and the driven friction pair 2.
Can gather oiling agent in the microflute of the utility model sliding friction kinematic pair in sum, in the progress of work, oiling agent can be carried at any time by active friction pair surface of contact and strengthen lubricatedly, slows down friction; Be pushed in the microflute because friction produces small metal fragment simultaneously, can effectively slow down the friction and wear between the kinematic pair surface of contact.Therefore, friction and wear can effectively slow down in the utility model sliding friction kinematic pair mechanism, improves its usability working life, and good reliability has better usability and stronger practicability.
Claims (8)
1. sliding friction kinematic pair mechanism of slowing down fretting wear, described sliding friction kinematic pair mechanism comprises initiatively friction pair (1), driven friction pair (2), initiatively friction pair (1), driven friction pair form Spielpassung between (2), it is characterized in that: microflute (3) is set on the frictional contact surface of driven friction pair (2).
2. described sliding friction kinematic pair mechanism of slowing down fretting wear according to claim 1, it is characterized in that: the sectional shape of microflute (3) is the circular arc bottom equilateral triangle.
3. sliding friction kinematic pair mechanism of slowing down fretting wear according to claim 1 and 2, it is characterized in that: the axis of microflute (3) axially becomes 30 °～60 ° angle with the moving direction of sliding friction kinematic pair.
4. sliding friction kinematic pair mechanism of slowing down fretting wear according to claim 1 is characterized in that: microflute (3) is for more than the twice, each road microflute (3) axially parallel to each other, and the spacing of microflute (3) is 5～10mm.
5. sliding friction kinematic pair mechanism of slowing down fretting wear according to claim 4 is characterized in that: be equi-spaced apart between the microflute (3).
6. according to claim 1 or 4 described sliding friction kinematic pair mechanisms of slowing down fretting wear, it is characterized in that: sliding friction friction in pairs surface of contact is the plane, and the axis of microflute (3) is straight line.
7. according to claim 1 or 4 described sliding friction kinematic pair mechanisms of slowing down fretting wear, it is characterized in that: sliding friction friction in pairs surface of contact is cylinder, the axis cylindrical helix of microflute (3).
8. sliding friction kinematic pair mechanism of slowing down fretting wear according to claim 1, it is characterized in that: the sliding friction kinematic pair is only done straight line motion or straight reciprocating motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220325543 CN202867558U (en) | 2012-07-06 | 2012-07-06 | Sliding friction kinematic pair mechanism for retarding frictional wear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220325543 CN202867558U (en) | 2012-07-06 | 2012-07-06 | Sliding friction kinematic pair mechanism for retarding frictional wear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867558U true CN202867558U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220325543 Expired - Lifetime CN202867558U (en) | 2012-07-06 | 2012-07-06 | Sliding friction kinematic pair mechanism for retarding frictional wear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268100A (en) * | 2018-08-24 | 2019-01-25 | 江苏大学 | A kind of texture cloth oil type engine air valve rod and production method |
-
2012
- 2012-07-06 CN CN 201220325543 patent/CN202867558U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268100A (en) * | 2018-08-24 | 2019-01-25 | 江苏大学 | A kind of texture cloth oil type engine air valve rod and production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
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| CX01 | Expiry of patent term |